Nikon DK21 Viewfinder Cover for Astrophotography

thingiverse

**Nikon DK21 Viewfinder Cover for Astrophotography** The viewfinder of your DSLR leaks light, which is especially noticeable after modding with the reds/IR coming through in full force! In the images you can see two dark frames, 10s exposures, stretched similarly as much as possible in PS. The before looks very red, with a lot of red light leakage in what should be as close to black as possible. After adding on the cover, the dark improves drastically. these were taken in daylight, however, so during the night it shouldn't be quite as bad. **Print settings** No special print settings, should fit as is. Printed in black PETG. Original FreeCAD file included.